What Is This?

No, it's not the video capture of an endoscopy. This particular black vortex lies a bit farther than that.

The Venus Express, the European Space Agency's spacecraft dedicated to the exploration of our sister planet, has made this surprising discovery on its south pole: A massive vortex similar to the one found on Saturn's south pole.

Instead of finding a double storm system as expected, the spacecraft only found a single vortex. Scientists are trying to figure out how and why this is happening. The image—taken by the Venus Express' Visible and Infrared Thermal Imaging Spectrometer— shows the eye of the hurricane at 60 kilometers over the planet's surface. [ESA via It's Full of Stars]